Re: VISA serial communication in LV 7 application

[CAW]

In regard to another application using the serial port, an application
that uses the serial port and is often loaded on system startup is PDA
synchronization software.  This is such a common technical support
call for us that we have specific warnings in our manuals to instruct
users to make sure the PDA synch software is disabled.

Allen Weekley
Alpha Technics
[EMAIL PROTECTED]

TI PCI-2040

[CAW]

Is there any support for the TI PCI-2040 bridge chip?  Are there any
LabVIEW drivers already developed?  Can the registers be written to
and read directly with low-level VISA functions?  How would memory be
mapped from the PCI bus side to the device side of the bridge chip?

Allen

Call to WinAPI Kernel32.dll doesn't work in runtime

[CAW]

I have a dll call to the Kernel32.dll function GetVolumeInformationA.
It works in the development environment and when I build it into an
executable and run the executable on the development machine it also
works, bu when I run the executable on the target machine with only
the LabVIEW Runtime installed it does not run.  It produces error code
21.  Any ideas as to the cause of the problem?

Allen

Re: Process with GOOP

[CAW]

Jim,

Thanks for the suggestion.  The reason I am looking at the Endevo
toolkit is to avoid the problems of distributing open source code
along with proprietary code, so I don't think I can use pieces of
OpenGOOP. Since the entire core of OpenGOOP is under open source
licensing, am I not restricted from using snippets of it?

Allen

Process with GOOP

[CAW]

I have been evaluating the Open Source GOOP toolkit and now I am
looking at the Endevo GOOP Inheritance Toolkit.  The Open Source
toolkit can start a process VI when the object is created and stop the
loop and kill the VI when the object is destroyed.  This is handy for
some instruments that, rather than being a command-response model,
start putting out data on the serial port approximately once every 500
milliseconds once the instrument is placed in temperature mode.  Can
the Endevo GOOP toolkit do the same thing?  How would one implement a
process loop with the Endeveo GOOP toolkit?

Allen

Re: connect to SQL Server without a DSN

[CAW]

Thanks for the opinion.  I agree that using a DSN has many advantages,
but it is my customer's requirement that the connection be made
without using a DSN.

Allen

connect to SQL Server without a DSN

[CAW]

Can I connect to a SQL Server database without using a DSN?  I am
using the following connection string:
Provider=MSDASQL.1;Extended
Properties="DRIVER={SQL
Server};SERVER=AT-CAL\SQL1A;READONLY=0;DATABASE=Calib"
as an input to DB Tools Open Connec (String).vi.
It produces the following error:
DB Tools Open Connec (String).vi->Untitled 2Exception occured in
Microsoft OLE DB Provider for ODBC Drivers, [Microsoft][ODBC Driver
Manager] Data source name not found and no default driver specified.
in DB Tools Open Connec (String).vi->Untitled 2
Is there something wrong with this connection string?

Are DLL's version proof?

[CAW]

If LabVIEW VI's are built into a DLL, could any version of LabVIEW
call the DLL?  Does a DLL built in LabVIEW include a LabVIEW Runtime?